Extension-table.



C. P. CUNNINGHAM. EXTENSION TABLE. APPLICATION FILED MAYZI. 1915.

1,191,159. v PatentedJulylS, 1916.

(72/625 568 BCQLnnngfi/am M BVW ATTORNEYS CHARLES I. CUNNINGHAM, 0FLOUISVILLE, KENTUCKY.

EXTENSION-TABLE.

To all w hom it may concern Be it known that I, CHARLES P. OUNNINGr HAM,a citizen ofthe United States, and a resident of Louisville, in thecounty of J efferson and State of Kentucky, have invented an Improvementin Extension-Tables, of which the following is a specification. V

This invention relates to tables, and more particularly to a novelextension device therefor. e n

.One of the objects of the present invention is to provide an extensiondevice designed to facilitate the adjustment of the table to difierentsizes and prevent warping of the parts, which sometimes occurs in ord1-.

nary constructions.

Another object is vice of this character comprising a piece and soconstructed as to be readily detached therefrom.

A stillfurther object is to provide an extension device of simpleconstruction, durable, effective in carrying out the purpose for whichit is designed and one which may be manufactured ata' minimum cost.

The inventive idea involved is capable of receiving a variety ofmechanical expressions, one of which, for the purpose of illustratingthe invention, is shown in the accompanying drawing, in whichv Figure 1is a perspective view of a table of pedestal type showing-the inventionapplied thereto. of the bridge sion device, the same being shown inperspective. Figs. 3, 4 and 5 are detailed perspective views of thediiferent parts of the extension device. Fig. 6 isa section on the line6-6 of Fig. 2. Fig. 7 is atransverse section on the line 77 of Fig. 6,and Fig. 8 is an enlarged fragmentary side elevation of the bridge pieceshowing the manner in which one of the slides is connected thereto.

Referring more particularly to' the accompanying drawing, in which likereference characters indicate similar parts,; the numeral 10 indicatesgenerally a table having a pedestal 11 with the bridge bar 12 at the topthereof.

The extension ably made of sheet metal and includes a pair of bridgepieces 13 secured to and extending transversely of the bar 12 adjacentthe ends thereof. Each of the bridge pieces 13 com- Specification ofLetters Patent.

the provision of a de- 7 bridge 1 and slides movable relative thereto;

. Fig. 2 is a fragmentary VIEW. bar of the table and the extenbodyportion device which comprises the essential feature of this lnventlon,1s preferprises inverted U-shaped body portion 14 having the baseflanges 15 extending Patented July 18, 1916.

Application filed May 21, 1915. Serial No. 29,511.

laterally from the longitudinal edges thereof. These base flanges areprovided with spaced openings 16 for the reception of suitable fasteningdevices whereby the piece is secured to the bar12. Each side of the bodyportion 14 is provided with an elongated:

slot 17, opposite ends of each slot being provided with an enlargedopening 18 for a purposewhich will appear, in the course of thisdescription. The material from which the slot 17 is formed is foldedback, as shown, to reinforce the'structure- A slide member generallyindicated by the. numeral 19 is arranged on each side of thebody portion14 of the bridge piece and is provided with a lateral flange 20 extendmgoutwardly therefrom and arranged in overhanging relation to the baseflange 15 which extends fromthe side of the body. portion 14 to whichsaid slide isconnected. The flange 20 is provided with suitable'open 80same is connected to the under-side of the' top of the table. In orderto guide the slidev ings 21 for receiving fasteners whereby the member19 in its-movements relative to the bridge piece, oppositely disposedlugs 22 struck from the side adjacent one end thereof and adapted toengage the slot 17 There is also provided further means for retainingthe 19 in engagement with the body portion 14 which consists of aprojection 23' in .the form of an ear struck out of the side of the 14and having its extremity 24bent inwardly and downwardlv so as to engagean elongated flange 25 formed upon the bottom edge of the slide member19.

The sides of each of the members 19 are also provided with smallprotuberances 26 which are adapted to engage the adjacent faces of thebody portion 14 to space the parts and reduce friction therebetween. I

In assembling the device, each of the slide members 19 is placed in theposition shown in Fig. 8 at right angles to the bridge piece 1 and hasthe lugs 22 mserted into the opening The said lugs 22 are of such awidth as to permit of the insertion thereof into the slot 17 and therebypermit the movement of the slide to the position shown when the samewill overlap the periphery of the opening 18, after which the slidemember is swung to a horizontal position so that the projection 23formed in the opposite end of the former is provided with slide I thebridge piece may be engaged with flange 25 of said member. In order topermit of this turning movement, the adjacent end of the base flange 15is cut away as indicated at 27 and the adjacent end of the slide memberis rounded as indicated at 28 thus permitting of the free turningmovement of the latter member. .From the foregoing description it willbe apparent that each of the slide members has a longitudinal movementrelative to the bridge piece in either direction, thus permitting of theopening and closing of the top of the table in order to vary the sizethereof.

I claim 1. An extension device comprising a bridge piece consisting of asubstantially U- shaped body portion having lateral base flangesprojecting from the longitudinal edges thereof, said body portion beingprovided in the sides thereof with opposed slots and enlarged openingscommunicating with one end of each slot, and a slide arranged on eachside of said body portion and provided with guide lugs adapted to engagethe slot in the adjacent side of said bridge piece, said lugs having apivotal movement in the opening in said slot.

2. An extension device comprising a bridge piece consisting of asubstantially U- shaped body portion having lateral base flangesprojecting from the longitudinal edges thereof, said body portion beingprovided in the sides thereof with opposed slots and enlarged openingscommunicating with one end of each slot, a slide arranged on each sideof said body portion and provided with guide lugs adapted to engage theslot in the adjacent side of said bridge piece, said lugs having apivotal movement in the opening in said slot, and a projection on eachsideof the body portion of said bridge piece adapted for engagement withthe adj acent slide for guiding the same.

3. An extension device comprising a bridge piece consisting of asubstantially U- shaped body portion having lateral base flangesprojecting from the longitudinal edges thereof, said body portion beingprovided in the sides thereof with opposed slots and enlargedopeningscommunicating with one end of each slot, a slide arranged oneach side of said body portion and provided with guide lugs adapted toengage the slot in the adjacent side of said bridge piece,

. said lugs having a pivotal movement in the opening in said slot, aprojection on each side of the body portion of said bridge piece adaptedfor engagement with the adjacent slide for guiding the same, andprotuberances in the sides of said slides for spacing the same from saidbridge piece.

.4. An extension device for tables comprising a bridge piece having aslot terminating at one end in an enlarged opening, and a slidecooperating with said bridge piece and having means engaging said slotto guide saidslide, said means having a pivotal movement in the enlargedend of said slot whereby said slide may be attached to and detached fromsaid bridge piece.

5. An extension device for tables comprising a bridge piece having aguide slot therein and having a projection formed thereon, and bent toprovide a guide groove, a slide member cooperating with said bridgepiece and having a flange upon one edge thereof adapted for engagementwith the guide groove formed by said projection, and means engaging saidguide slot for guiding said slide.

CHARLES P. CUNNINGHAM.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, 0.

